348 citations · 6.3k across the 139 of their papers we have counts for
6 papers · 1 filter
High temperature series expansion study of the Heisenberg antiferromagnet on the hyperkagome lattice: Comparison with NaIrO
R. R. P. Singh, J. Oitmaa
We develop high temperature series expansions for and the uniform structure factor of the spin-half Heisenberg model on the hyperkagome lattice to order . These ex…
Corrections to Pauling residual entropy and single tetrahedron based approximations for the pyrochlore lattice Ising antiferromagnet
Rajiv R. P. Singh, J. Oitmaa
We study corrections to single tetrahedron based approximations for the entropy, specific heat and uniform susceptibility of the pyrochlore lattice Ising antiferromagnet, by a Nume…
Phase transitions in spin-orbital models with spin-space anisotropies for iron-pnictides: A study through Monte Carlo simulations
Ryan Applegate, Rajiv R. P. Singh, Cheng-Chien Chen +1
The common phase diagrams of superconducting iron pnictides show interesting material specificities in the structural and magnetic phase transitions. In some cases the two transiti…
Anomalies in the Entanglement Properties of the Square Lattice Heisenberg Model
Ann B. Kallin, Matthew B. Hastings, Roger G. Melko +1
We compute the bipartite entanglement properties of the spin-half square-lattice Heisenberg model by a variety of numerical techniques that include valence bond quantum Monte Carlo…
Thermodynamics and phase transitions for the Heisenberg model on the pinwheel distorted kagome lattice
Ehsan Khatami, Rajiv R. P. Singh, Marcos Rigol
We study the Heisenberg model on the pinwheel distorted kagome lattice as observed in the material Rb_2Cu_3SnF_12. Experimentally relevant thermodynamic properties at finite temper…
Finite Temperature Critical Behavior of Mutual Information
Rajiv R. P. Singh, Matthew B. Hastings, Ann B. Kallin +1
We study mutual information for Renyi entropy of arbitrary index n, in interacting quantum systems at finite-temperature critical points, using high-temperature expansion, quantum…